#405D88
Closest named color: Denim (#3B638C). oklch(47.5% 0.078 258.1), rgb(64, 93, 136).
Aa
White text reads best on this color (6.68:1).
About this color
#405D88 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.078 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.017 away. White text reads best on it, at 6.68:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.13:1 |
| White text | 6.68:1 |
Values
| HEX | #405D88 |
| RGB | rgb(64, 93, 136) |
| HSL | hsl(216, 36%, 39%) |
| OKLCH | oklch(47.5% 0.078 258.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #405D88 | 6.68:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #405D88 | 3.13:1 | AA large text | Lc 21.1 | Dividers and decoration only |
| #405D88 text on white | 6.68:1 | AA | Lc 82.9 | Fine for body text |
| #405D88 text on black | 3.13:1 | AA large text | Lc -19.0 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF1
oklch(93.5% 0.011 256.7)
-
Step 200
200
#D1DAE7
oklch(88.5% 0.02 257.5)
-
Step 300
300
#B2C2DA
oklch(81% 0.038 258.4)
-
Step 400
400
#89A2C7
oklch(70.6% 0.061 258.1)
-
Step 500
500
#6C8BB8
oklch(63.1% 0.077 257.6)
-
Step 600
600
#5474A4
oklch(55.5% 0.084 258.3)
-
Step 700
700 (this color)
#405D88
oklch(47.5% 0.078 258.1)
-
Step 800
800
#385072
oklch(42.7% 0.064 257.1)
-
Step 900
900
#31425C
oklch(37.6% 0.05 258.7)
-
Step 950
950
#1D2736
oklch(27% 0.031 258.3)
#405D88 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #4C608A | 0.019 |
| Deuteranopia (no green cones) | #435987 | 0.012 |
| Tritanopia (no blue cones) | #1D666C | 0.069 |
| Achromatopsia (no color) | #5C5C5C | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #405D88
#405D88
oklch(47.5% 0.078 258.1)
- #745623
#745623
oklch(47.4% 0.078 78)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #405D88, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.017
- Denim Blue #3B5B92 ΔE 0.020
- Dusky Blue #475F94 ΔE 0.022
- Light Navy Blue #2E5A88 ΔE 0.023
- YInMn Blue #415A77 ΔE 0.027
- Dusk #4E5481 ΔE 0.030
- Dusty Grape #545775 ΔE 0.039
- Twilight #4E518B ΔE 0.039
Use #405D88 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.